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Finding the Fourth Proportional to 799.02, 1,101.51 and 658.94

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Solution

The fourth proportional to 799.02, 1,101.51 and 658.94 is: 908.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    799.02 : 1,101.51 = 658.94 : x
  2. Step 2: Convert to fraction form
    799.02/1,101.51 = 658.94/x
  3. Step 3: Cross multiply
    799.02x = 1,101.51 × 658.94
  4. Step 4: Simplify right side
    799.02x = 725,823.49
  5. Step 5: Solve for x
    x = 725,823.49/799.02
  6. Step 6: Final answer
    x = 908.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.